2801 West Durango Street Phoenix, Arizona 85009 Contact: Patti Thoemke Phone: 602-506-4708

April 13, 2017

Flood Control District of Maricopa County

PRESENTERS:

Bill Wiley Chief Engineer/General Manager

Mark Frago Planner

Kelli Sertich Policy/Planning & Coordination Branch Manager

Tom Loomis Special Projects Branch Manager

Don Rerick Planning/Project Management Division Manager

~2017~ MEETING SCHEDULE

• February 9 • April 13 • June 08 • August 10 • October 12 • December 07

The Flood Stakeholder Group will meet

the second Thursday of every other month unless otherwise indicated.

Flood Stakeholder Group Adobe Conference Room

2:00 – 3:30 pm

1. Welcome and Comments (Bill Wiley)

2. Floodplain Regulations (Mark Frago)

3. Federal Actions (Kelli Sertich)

4. Gila River Flow Study (Tom Loomis)

- USGS N-Value Measurement Project

5. Project Updates (Don Rerick)

6. Round Table (All)

April 13, 2017

Flood Stakeholder

Group

Welcome and Comments (Bill Wiley)

Floodplain Regulations (Mark Frago)

Federal Actions (Kelli Sertich)

Gila River Flow Study (Tom Loomis)

Project Updates (Don Rerick)

Round Table (All)

Agenda

WELCOME• Yolanda Valenzuela

Accountant (Administration)

• Daniel Moreno General Maintenance Worker (O&M)

• Ryan Walker General Maintenance Worker (O&M)

WELCOME• Erica Crouch

Accountant (Administration)

• Latonya Jordan Smith CIO/PIO (Executive)

• Tanee Morris Administrative Assistant (Executive)

WELCOME

• Bryan HuntonInspector Regulatory (Engineering)

• Shelby Brown Right of Way Specialist (Engineering)

•Tim Osolin Crew Leader (O&M)

•Corey DeckerIntern (Communications)

• Walt Kinsler Associate Project Manager (PPM)

•Alexia Johnson Customer Service Rep (Support Services)

•David CharlesCrew Leader (O&M)

Right-of-WayUse Permitting

Online Payments

Online Payments

Online Payments

2017 Public Works Project of the Year(27th Ave & S Mountain Ave Regional Basin)

Floodplain Regulations Update

Mark Frago, AICP, CFMPlanner

Policy, Planning & Coordination Branch

Purpose & Introduction

To Adopt text amendments to the Floodplain Regulations for Maricopa County.

• No additional regulatory burden as a result of these proposed text amendments.

• Changes in state statutes

• FEMA/ADWR audit requiring modifications

• Sand and Gravel taskforce changes

• Clarifications and minor wording changes

Floodplain Regulations Update

Key Changes

• Lifespan permits for Sand and Gravel

• Changes in fees to reflect modified permit structure

• Floodplain Use Permit fee reduction for modifications

• Licensing Timeframe

• Clarifications – minor wording and location changes in document

Enhanced Regulatory Outreach Program

http://www.maricopa.gov/2838/Enhanced-Regulatory-Outreach-Program-ERO

Issues and Next Steps

• Stakeholder meeting held 4/13/17

• Next Step− 1st public meeting with the Flood Control Advisory

Board (FCAB) scheduled for May 24, 2017

Questions?

Kelli A. Sertich, AICP, CFMBranch Manager

Policy, Planning & Coordination

Federal Actions

Transition – What Was Expected

• New Administration focus on the Economy

• Existing Federal regulations & policies curtailing economic development and/or limiting job growth to be looked at

• All executive orders issued by prior presidents could be overturned as early as the afternoon of Jan 20th

• All rules finalized after the end of May 2016 could be subject to the Congressional Review Act overturn

What’s Happened So Far

• 23 Executive Orders

• 20 Memorandum

• Important to FCD− Hiring Freeze (Memorandum)− Expediting Environmental Reviews− Reducing Regulation & Controlling Regulatory Costs− Enforcing Regulatory Reform− WOTUS Rule− Reorganizing the Executive Branch

Federal Legislation

3,497 Bills Introduced

Important to FCD− NFIP Reauthorization – 7 bills likely rolled into one

− FEMA – Grant Assistance, Disaster Declarations, & Levee Failure Response

− Number of bills about more transparency for EPA, Endangered Species

− Water Infrastructure Improvements for the Nation (WIIN); signed by POTUS 12/16/2016

Policy/Regulation in Process

• E.O. 13690 Federal Flood Risk Management Standards (FFRMS) –response due on USACE Guidelines

• WOTUS Rule – Expectation to have done by end of year

• Reauthorize & Reform the NFIP –hearings in process

• EO13777 – Reg Reform – EPA RRM –May 15

Waiting On Action

• Continuing Resolution for current FY expiring; need action to fund Federal government after April 28, 2017

• Next FY Budget in process

• Funding Bills not appearing yet

− Farm Bill

− WRDA/WIIN (passed 2016)

− FEMA Grant Notice of Funding

Questions?

Tom Loomis, P.E., RLS, CFMSpecial Projects Branch Manager

Engineering and Permitting Division

Gila River Flow Studyn-value Measurement Project

Drainage Design Manual (DDM)

DDM On-Going Maintenance/Updating

• Hydrology Manual

• Hydraulics Manual

Why n-value Measurement?

Friction loss:• Estimates can significantly affect floodplain widths and depths

• Varies with flow depth and duration

• Vegetation is often removed depending on stream power and flow duration

FEMA requires using existing conditions

Aerial Photograph Background: 2016

Aerial Photograph Background: 1991

Aerial Photograph Background: 1993

Aerial Photograph Background: 2016

Gila River at SR-85: 2015

Gila River Upstream of SR-85: 2015

Technology Being Applied

• LIDAR topographic mapping and aerial photographs (pre- and post-flood)

• Two-dimensional hydraulic modeling

• Continuous Slope Area Gages

• Particle tracking from videos

Goals

• Use new technologies to more accurately delineate flood hazard areas

• Develop guidelines for applying depth-variable n-values for flood studies

• Obtain acceptance by FEMA

• Update DDM Hydraulics Chapter 7

Where To Go To Learn Moren-value Measurement

– Continuous Slope Area gages and measurements:https://www.usgs.gov/media/videos/continuous-slope-area-method-sycamore-creek-az

– Particle tracking:https://www.usgs.gov/media/videos/particle-tracking

Other Links Of Potential Interest:– USGS StreamStats (an FCDMC/USGS joint effort):

https://streamstatsags.cr.usgs.gov/v3_beta/viewer.htm?stabbr=AZ

– Drainage Deign Manual: Hydrology & Hydraulicshttp://www.fcd.maricopa.gov/4324/Download

Questions?

Don RerickPPM Division Manager

Projects Updates

Planning StudySouth Phoenix & Laveen ADMP Update

• Study efforts continue:

− Evaluation of drainage issues and development of possible mitigation alternatives continues.

• Coordination continues with Phoenix and public meetings have been scheduled:

− Public meetings to be held on May 2nd and 3rd.

• Final study report and recommendations in summer 2017

Planning StudyPinnacle Peak West ADMS

• Rawhide Wash preferred mitigation alternative:

− DCR initiated to further evaluate components of the preferred alternative

− Continued coordination with Phoenix, Scottsdale and ASLD on an implementation plan

• Redelineation of Fans 5 & 6 floodplains:− Floodplain redelineation has

been submitted to FEMA

− Approximately 2,900 properties removed from floodplain

Planning StudyUpper East Fork Cave Creek Area Drainage Master Study Update

• Study efforts continue:− FLO-2D modeling update of the

Moon Valley Wash area

− Identify potential mitigation solutions

− DCRs may be implemented for selected mitigation solutions

North Town – Greenway Pkwy. and N. Cave Creek Rd.

Crystal Creek Apartments- Bell Rd. and N. Central Ave.

Baptist Church Area –Greenway Pkwy - East of 16th

St.

− Target completion – Sept. 2017

• Public outreach efforts continue:− Coordination on-going with

Phoenix

Planning StudyMiddle Indian Bend Wash Area Drainage Master Study

• Work Assignment #2 activities continue:− FLO-2D and SWMM modeling

continues for both the north and south areas of the study

− Target completion for study –Spring 2018

• Coordination with Phoenix and Paradise Valley is on-going

DesignMcMicken Dam Rehabilitation

• Design is being done in phases

• Phase 1 design continues

• Phase 1 target completion –Dec. 2017

• Developing IGA with Maricopa Water District for siphon crossing

• Outlet Channel 30% design is complete

• Remainder of Outlet Channel design to be done in-house

DesignGranite Reef Watershed Project – Phase 1

• Lead Agency – City of Scottsdale

• Phase 1 activities continue: − Phase 1A 100% P&S in April 2017

− Phase 1A construction start in May 2017

− Phase 1B 100% P&S in end of 2017

− Phase 1B construction start in spring 2018

− Future Phase 2, south of ISR to the Salt River TBD

Design Concept Report (DCR)El Rio Levees

• Partnership with City of Buckeye

• Levee or combination of levee and vegetation management to protect Buckeye Slough from 100-year flood.

− Continue evaluation of three alternatives

− 15% plans for recommended alternative being developed

− Completion late spring 2017

Construction115th Avenue & Union Hills Drive Drainage Improvements

• Phase 1 and Phase 2 construction is underway

• Utility relocations for Phase 2 complete by June 2017

• IGA Amendment for partner cost share repayment being processed

• Construction completion in June 2018

Construction Manager at Risk (CMAR)Vineyard Road & Powerline FRS Rehabilitation

• Vineyard:− Phase 2A construction is

underway with NTP given on March 1

− Phases 2B & 3 design continues− Phase 1 construction completed

• Powerline:− 90% design effort underway− Continuing to resolve utility

conflicts− Construction phasing

developed− Continue coordination with

ASLD

Construction Manager at Risk (CMAR)Buckeye FRS No. 1 Rehabilitation Project

• Construction of Phase 2A continues with inclusion of elements from Phase 2B

• Phase 2B design continues

• Target completion for Phase 2A with additional 2B work is end of 2017

Construction Manager at Risk (CMAR)White Tanks FRS No. 4 Rehabilitation Project

• Phase 2 Dam Rehabilitation construction activities continue

• Estimated construction completion date is Summer 2017

Questions ?View of impoundment

behind Cave Buttes Dam,

Jan. 2010. Impoundment

was 19% full.

To the right is the old Cave

Creek Dam built in 1923 that

is no longer functional

because of the newer Cave

Buttes Dam built in 1980.

ROUND TABLE